At 02:57 13-06-2007, Mike Kenny wrote:
On a related topic, <http://netzero.com>netzero.com has been
refusing connections from our SMTP servers. When I queried them the
response I got was:
have been blocked because we detected probe attempts. Activities
like sending mail to non-existent accounts or empty connections
would qualify as a "dictionary search" or "probing for valid
addresses" and IP's used for such activity would be automatically
blocked for a temporary period.
Were you sending mail to non-existent accounts or doing sender validation?
Subsequent communications have dealt only with the non-existent
accounts. Does blocking us on this basis make any sense? And has
anybody else encountered similar issues with netzero? If so, how resolved?
Yes, it does if most of the connections are for non-existent
accounts. It can be resolved by not doing that.
Regards,
-sm
